Actually, I am not trying to uninstall EndNote itself, but the plugin that allows EndNote to integrate with Pages. (The integration is pretty awful so I am trying to uninstall it once I have all my citations complete so I can make some manual edits of my footnotes and bibliography.) I tried to delete the plugin file from Mac HD but that didn't actually convert the citations to plain text, so I am currently thinking I'll have to manually copy and paste my footnotes into MS Word and back to make them editable... which is pretty absurd. I'd welcome advice or any other ideas.
This is the plugin I am trying to delete: Download Pages EndNote Plug-in v3.3